TOO-CAREFUL
\tˈuːkˈe͡əfə͡l], \tˈuːkˈeəfəl], \t_ˈuː_k_ˈeə_f_əl]\
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Word of the day
abo group
- a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are and B AB O